♪ hello, my old heart, how have you been ♪3 f1 our plan et ceteet is changi vanishing waters on the west. one day could we be overcome by the ocean? is it already beginning to happen? there is virtually no debate among climate scientists now. most agree that climate change is here and that we are the biggest reason. we may also have to be the solution. you'll see powerful new evidence from people who say climate

change is already changing lives. right where we all live. you'll also learn what we can do to pro tent our planet. >> you start thinking about the families who have now lost their loved ones. >> he said i'm alive but everything's gone. >> ourselves. >> we don't have team to argue. >> it's happening before our very eyes. >> it was a moment that changed my life. our year of extremes. did climate change just hit home? >> in the u.s., there's still more rough weather to report tonight. >> you know, this is the driest they have seen since 119 years. >> the state says at least 30 highway bridges are completely destroyed. >> from here down across the cape winds are gusting 35 to 40 miles per hour. >> it feels like an all-out assault. for the last year and a half, it seems mother nature has thrown everything at us.

>> look at the cold air that is surgesi surging into the upper midwest. >> surging heat, drought, and fire. floods gushing through the u.s., europe and asia, and superstorms devastating entire regions. what on earth is going on? for more than a year we traveled the far corners of our planet searching for answers to what's causing these weather extremes. >> this is the storm of the century. >> we met ordinary people who have seen changes up close and asked some of the world's brightest scientists, is the weird weather a quinn difference or a sign fundamental change is here. >> the planet is not just changing, it's changed. >> accompanying us some of the way was nasa scientist tom wagner. he's been studying glaciers and sea level rise for more than a decade.

we first met him in antarctica. he's one of the scientists who agree that the earth is warming and changing our climb at in fundamental ways. >> the basics nobody disagrees with, which is as the planet warms up you have warmer ocean temperatures and warmer air. that's going to cause more extreme weather events by itself, and we're already seeing that. >> at the end of march, an influential group of scientists issued a ground-breaking report saying climate change is already sweeping all the continents and oceans of our planet. their position, there is no doubt the planet is getting warmer. wait a minute. if climate scientists are so sure the earth is warming, you may wonder why was it so cold in parts of the u.s. this past winter? here in chatham, massachusetts on the sixth day of spring,

blizzard conditions, wind kugus of 60 miles per hour. we're in a snowstorm, another one. wind gave way to a siberian chill. on january 7th, some 50 cities registered record lows. home heating bills soared by up to 50%. but what really stood out was how much snow there was and how far south the cold crept, as far as central florida. cities that are normally balmy were put into a deep freeze. atlanta was paralyzed by ice as a storm hit the city. tens of thousands of people were strapped like this mother of two. >> i've lived in atlanta for the past 18 years. i don't think ever we've had anything like what happened this year. >> she spent 24 hours in a traffic jam unable to reach her 10 year old. for five hours she didn't know

she was safe until she got that call. >> when i got that call from the middle school i just started crying. >> the severity of the storm caught her family and atlanta unprepared. >> it just seems to be betting more, more extremes, extreme hot and extreme cold. >> all this freezing cold might be enough to make you think that climate change sometimes called global warming can't be happening. but it might surprise you to hear about one theory. scientists are still researching that actually suggests warming could be a cause of extreme cold. >> why is it so cold if the earth is warming? >> it's cold here right now. it's actually warm everywhere else. if you look at the averages and sum up the total, it's still warmer. and, you know what? it's warm notice arctic because that cold air is here. >> the cold air he's talking about is a freezing blast from the arctic. most years that icy air, the purple area in this graphic is locked near the north pole, trapped by a boundary of

swirling winds called the polar vortex. but this year, an unusually warm one in the arctic, something happened. the polar vortex broke open and the cold air came south. >> so what caused the polar vortex to break? >> sometimes you get warm air high in the atmosphere that causes this polar vortex to brake down. >> one theory is that when it warms the icy vortex weakens, allowing cold air to spill south. but that theory is still being purchased and debated. >> do you see a lineage between the amount of cold weather and climate change? is this a sign of climate change? what is the answer to that question? >> the answer is yes. extreme weather is a sign of climate change, and it's the kind of thing we expect more of when the earth continues to warm. you can't attribute any one single event to climate change.

>> in other words, there isn't enough evidence to point to a specific weather event, like atlanta and say for sure that climate change was the cause, but it fits a pattern of extreme events that has scientists like wagner concerned. >> and the important thing about this is where are we going? what kind of changes do we have to plan for? >> so. >> why is the planet getting warmer? you've heard debate about whether nature or man is to blame. but the debate is over. 97% of them agree as humans burn fossil fuels like coal, oil and gas, the plan et ceteet warms. >> you're saying it is impossible for it not to have something to do with it? >> literally impossible. there is no argument that man kind's activities have caused the planet to warm.

>> the past year was the fourth warmest on record. and the consequences of that warming can be deadly. >> we just lost a whole hotshot crew. it's time to change, to a new way of cleaning. introducing finish power & free. powered by hydrogen peroxide action to give you sparkling results with less harsh chemicals than ever before. because these are not just glasses. they're what your family drinks from. finish power and free. sparkling clean. less harsh chemicals.

♪ you're looking at a place where parched earth, withered crops and the sale of livestock tell the story of fading hope and fear. it might look like the surface of another planet, but this is california, in its third year of drought. this reservoir two hours north of los angeles supplies water to some 200,000 people.

but the area is in a drought emergency. because the water level is supposed to be more than 50 feet higher. the drier weather is still ahead. in the west, the number of areas with the most extreme drought has nearly doubled in the past year. >> this used to be a plush, nice town, and now it's starting to look like a ghost town. >> in lake of the woods, california, we found tara trying to find any passing drop of rain. >> you collected this from yesterday? >> i collected this from yesterday. i'll use it to flush my toilets, for watering my plant tplants? >> i 9 you pray for rain? >> i pray for rain. >> the town has only a few weeks

of water left. tara uses any clean shower water to wash her dishes. >> i notice you have a dishwasher. >> and i do not use that. my dishwasher is used for storage. >> the drought here has proved too much for some of tara's neighbors. >> this one's empty. this one's empty, and i have two down on that end empty. >> all because of the drought? >> all because of fearful and leaving. >> now tara is looking for a miracle. >> i feel in my heart that it is going to get worse. i want something to happen. i doesn't know what. >> the drought that threatens her community also threatens the heart of one of california's biggest industries. california's farmers who supply half of the nation's fruits, nuts and vegetables have had to cut back production. food prices are expected to rise. >> the droughts in the southwest are probably the worst in 100 years. >> why specifically the

southwest? >> just the way the air moves around the earth. >> and although normal cycles of weather can cause drought in this region, tom wagner says systems have kept rein away from this area, and the heat is affecting the snowpack. >> snowfalls throughout the winter and melts throughout the summer. the snow is going away earlier. >> melting faster as temperatures rise. >> we have a shorter period over which there is snow on the ground. >> and if extremely dry conditions aren't a big enough threat, the ongoing drought that some scientists call a megadrought is increasing the risk of wildfires. in california alone, some 800 wildfires big and small have already ignited in 2014. that's three times the normal number. the u.s. forest service says nearly 70,000 communities across the country are in wildfire

danger zones, that's more than 40 million homes. >> west 6 to 12. >> jim hughes top leads california's laguna hotshots, an elite group of firefighters on the front lines of some of the most ferocious fires in the country. >> how have fires changed since you started fighting them? >> when i started in '89 till now, it seems that the fire seasons have gone much longer. when i first started it was in a six month period, basically june to november. >> but that has changed dramatically he says. >> we joke about it being a year-round fire season. >> it isn't just putting communities at risk but posing dangers to men and women on the front lines. >> can you take much more in terms of the demands this job is now requiring? >> the one thing that's going to get us is if we're sofa teagued -- our head has to be in the game. >> no matter how sharp his crew

might be wildfires are unpredictable and sometimes explosive. last year his teamworked alongside the granite mountain hotshots. >> i got the phone call and i didn't sleep for two nights. >> what happened exactly? >> we just lost a hotshot crew. the hotshots were burned over and killed. >> 19 hotshots from the same crew died. the deadliest day for wildfire fighters in 80 years. it was a tragedy that rippled through the nation. >> you start thinking about the families that have now lost their loved ones and what they're going to have to go through now. >> but houston can't afford to dwell on the tragedy. fire season is already here once again, and scientists say this drought is expected to persist. >> so you're saying that there

is not a lot of debate among climb hat scientists about that? >> there's always a debate, and it's hard to attribute any gun thing. but we can say some general things. one of those things is that the southwest will get drier and places like the east will experience more intense rainfalls. >> we have what seems to be at least for now a very abnormal situation. >> well, not abnormal, this is the new normal. >> and that new normal has sparked a new theory about wildfires, a theory that led us to the top of the world. >> you know, i've never seen something like that here. >> life here has changed too. >> we have been here for thousands of years. why should we pay that price for your way o

♪ here we go. crunch. >> one, two, three, boom. >> our boat smacked up against drifting chunks of ice that could be thousands of years old. this dazzling ice scape seems a world away from the parched farmland we've seen in california or the wildfires we've watched blazing in the southwest. but it is here in the arctic that climate scientists say we might find not only some of the most dramatic climate change

going on right now in our planet but also the source of the extreme weather we've a been tracking elsewhere. >> the arctic is a very useful bellwether of change. and it's ringing. >> american glaciologist jason has been studying ice for 20 years, and he says the ice has been melting at a scale and speed scientists never ma'amed possible. >> greenland each year is losing about 300 billion tons. >> we caught up with box in greenland, home to the massive glacier. it's been discharging ice into the sea as icebergs for hundreds of thousands of years, but just in the last six years as captured in this time lapse video, it has doubled in speed. >> i've seen this world's fastest glacier lose an ice shelf the size of manhattan while doubling in speed. this is a monumental change.

>> and ice hasn't been melting at such a furious pace in just the arctic. scientists have observed record ice melt all over the globe, from the arctic, to the himalayas to the swiss alps. >> it has changed the whole way of life. >> this is a leader of the inuit people. >> the only people around the north pole in the arctic are us. we have been here for thousands of years. and we tell you things are changing. >> for thousands of years, a time even before memory, the inuit have been able to raid the sea ice. but just in the past 20 years, the ice has been melting earlier and earlier in the year. it has become unpredictable and unstable, even dangerous.

>> two years ago here a young couple died falling through the ice. >> we saw first hand how the inuit are trying to navigate this new world when we accompanied them on a hunt. they were looking for walruses and seals. they found thin ice. this man told us he had to watch his step saying the ice is melting so fast in the old days it was this thick, up to my stomach. whips cracking, the hunters push the dogs on until they came to an expanse of open water. not so long ago the hunters told us, this water would have been frozen solid this time of year, a road for their dog slids. now they had to use their dogs to haul motorboats into the water instead. for the next few days they

hunted from these boats with no animals in sight until suddenly a glimpse of a seal, a shot fired and they hauled their kill onto their boat. it was only enough to feed their dogs. >> can you explain why they're having such a hard time finding animals? >> yeah. we've seen in satellite measurements the sea ice edge has just been moving northward. and it's on that edge where the seal like to sit and just kind of rest, so that that's where the hunters want to go. the problem is, it's moving further north, out of reach. >> okay. >> so why is the ice melting so fast? to get a look at the reason, we boarded a boat with jason box and headed out to iceberg alley, the channel where icebergs flow from greenland's interior down to the sea. >> ice is nature's thermometer. when it melts away, you know there's extra heat that went into twha ice. >> he says the ocean's temperature is increasing here

as it absorbs warmth from the atmosphere around it. >> it's not that the air is warming but the water is warming. >> the big story is in the ocean, way down deep from where we are, but it's heat exchange. that's the trigger mechanism for the acceleration of these glaciers. >> but if this is speeding up the melting of the glaciers, jason box has a new, surprising theory about something else that may be speeding up the warming even more. >> oh, here we go. look at that. >> the usually pristine ice looked dirty gray in places. >> the ice is white except for the huge swaths of darkness. >> it's most likely dust but also that is some wildfire stooth soot. >> it was hard to imagine, but box was saying that soot from wildfires in north america had traveled all the way here, coating the ice with carbon

particles, transforming it into what he calls dark snow. >> and ha happens with dpark ice, dark snow? >> light absorbing impurities trap more sunlight and can hasten the melting process. >> if there are more forest fires there's going to be more soot. and you're saying the soot on the ice causes fast eer melt, s what are we talking about here? >> it's a good example of human activity and climate change combining in complex ways. >> it is for the most part taking place far from the arctic, and that makes the inuit leader angry. >> why should we pay the price for your way of life? why? >> and there is something more he asks that we think about.

>> we are experiencing the climate change every day. and you are about to see it tomorrow. >> in fact, most climate scientists say the tomorrow he is talking about might have already begun. >> how did my house get here? it. [ zach ] it's a swiffer dusters. it can extend so i don't have to get on the step stool. ♪ it's like a dirt magnet -- just like my kids. [ afi ] this is a danger zone. voila! i am the queen of clean! [ zach ] yeah, this definitely beats hanging out on a step ladder.

athis is paul's office. i am the queen of clean! for those who believe a serious job doesn't have to feel so serious. one a day men's vitacraves with key nutrients like b-vitamins. all the fun of a gummy that's a complete multivitamin.

as a i'm still not going toall the pmake it to mars,o visit. but thanks to hotwire's incredibly low travel prices, i can afford to cross more things off my list. this year alone, we went to the top of the statue of liberty... and still saved enough to go to texas-- to a real dude ranch! hotwire checks the competition's rates every day... so they can guarantee their low prices. so we got our 4-star hotels for half price. next up, hollywood! ♪ h-o-t-w-i-r-e ♪ hotwire.com save big on car rentals too, from $11.95 a day.

♪ it came in a flash, and it was a catastrophe. >> the skreek kept rising. it started taking out houses. >> colorado's september flooding was one of the most extreme weather events of the last year. more than a whole year of rain fell in less than a week. the flooding damaged or

destroyed some 20,000 homes, entire towns were inaccessible for days. in march, in monrovia, california, sudden downpours again caused chaos. >> wow, look at this. >> yeah. this gives you a sense of the amount of mud and debris flow. all comes from the canyon, 24 acres beyond up there. >> in washington state, it was so much worse. flash flooding and mudslides brought tragedy. more than 30 people have died. and around the globe, it was a year of massive floods. >> really high right now. >> state of emergency in canada. huge swaths of asia under water. and in parts of europe, the wettest winter in some 250 years. it all had us wondering if floods are connected to climate change. >> as the planet warms up you have warmer ocean temperatures and warmer air. the warmer air can hold more water vapor.

when you combine those things, you wind up with much stronger storms. >> in other words, says climate scientist tom wagner, when it rains, it really pours. that means even long periods of drought can be punctuated by intense and dangerous rainfall. >> we've seen increasing frequency of heavy down pours all across the country. >> scientist jennifer francis at rutgers university, new jersey has been studying the atmosphere for more than 25 years. she has a bold and controversial theory that directly links intense storms to what's happening notice arctic. the key, she says, is what's known as the jet stream. >> why california can't get any rain or snow, it's that arctic jet stream. >> the jet stream is literally like a river of air. and it takes a wavy path as it

travels around the northern hemisphere. those waves in the jet stream are what create the weather that we feel on the surface. >> francis is arguing that arctic ice melt is changing the jet stream. >> what we found in our research was as the arctic is warming faster, it's causing these waves in the jet stream to get larger. >> more like this. >> right. >> and less like this. >> exactly. and when that happens, those waves tend to shift more slowly from west to east. >> the slower moving waves, she says, hold weather systems in place for longer periods. >> so a severe storm will take longer. nice weather will take longer. >> right. ? >> in 2012, francis published a paper about her new theory, warning that new extreme weather was on its way. then just a few weeks later hurricane sandy began to form. >> good evening.

tonight much of the east compost is on high alert. >> at their home, pedro and jen curry have watched the news nervously as sandy churned toward their home. >> i knew something was different about this storm. i would see it. >> pedro evacuated jen and their two children but he stayed to try to protect their dream house. when sandy hit, the storm surge combined with high tides and the water quickly rose all around him. >> you were in the house? >> i was in the house, but i was starting to think i'm going to die. >> pedro clung to life on a rooftop for hours before jen got word that he had survived. >> he said i'm alive but everything's gone. it was this, it was the moment that changed my life. >> we got to go through this. >> a few days later, reunited, they went looking for their home in a small boat. >> where's my house? >> it was nowhere to be seen.

>> that's my back yard. >> it had been carried a half-mile away into a marsh. >> how did my house get here? >> it was almost too much for jen to comprehend. >> they saved little bits of their history, their daughter's baby book. a waterlogged wedding photo. >> i love you. >> i love you. >> even though sandy wasn't the strongest hurricane to ever hit the east coast, it was blocked in place by the jet stream, causing unprecedented damage. for francis, it was sad evidence her theory might be right. >> all that coming together was like watching a bad dream unfold in reality. >> a dream you saw coming. >> the possibility. we saw the possibility. >> that theory about a direct link between arctic ice melt and

more intense storms seemed to be bearing out. sandy happened the same year as the greatest ever recorded arctic ice melt. >> we can't say for sure whether these two things are directly tied to each other, but it just seems an amazing coincidence if they're not. >> did you believe they are? >> i do believe they are. >> her theory is on the cutting edge of climate research. some scientists say it has merit but needs more study. >> a public policy expert who has testified before congress is among those who say human activity has lid to climate change but that francis goes too far. >> there are some who are linked catastrophic events that we're living through today to climate change. what is your problem with this? >> well, the fundamental problem is that the science just isn't there to support those linkages at this point. it is unfortunate some advocates

for action are willing to jump on the latest extreme event and use it to say this is an example of climate change. >> pillki says at least 50 years of data are needed to show change. and those who make a direct link between recent extreme weather and climate change are risking their credibility. >> i'm all for recognizing outliner perspectives and interesting hypotheses that are out there, but they have to cross the bar of reaching their scientific peers, and that has yet to be done. >> you're stepping out and saying i believe these are related to climate change. >> i think the risk for myself is worth it. people are starting to realize that climate change is not a gradual warming that is going to be a concern for their grandchildren but not today. this is happening now. it's happening before our very eyes. >> that was my front porch. >> whatever was causing the

extreme weather, back on statsen island, pedro and jen were still picking up the pieces, trying to rebuild their lives. after the devastation of sandy, they, like millions of others living on the coastline were asking themselves, is it safe to live near the water? >> all of these condos, high rises, hotels, and they're right on the water. they're very vulnerable. [ hair dryer whirring ]

[ male announcer ] there's a simpler way to fluffier eggs.

i can't believe it's not butter! the simpler way to delicious fluffy eggs. believe. people shave you. pour hot wax on you. [ woman ] they don't treat you like skin. [ female announcer ] new dove advanced care, the first antiperspirant with nutrium moisture. [ woman ] you deserve our best care ever. and don't you ever forget that.

♪ it was a beautiful house. >> 11 months after superstorm sandy sent waves rushing through their staten island neighborhood, leaving their home into marshland. pedro and jen had a decision to make. rebuild or move to higher ground. >> there's nothing here. it's the end of a neighborhood. >> we walked with them through their old neighborhood to see what was left. >> these people who lived here were like family to us. >> pedro showed us how high their home would have to be to withstand a sandy. >> that would be as high as the lamppost. >> just the thought of living next to the ocean he had loved so much scared him now. >> that ocean was going to become the boogeyman to my

children, my wife. they were going to sleep every night wondering if the ocean would take our family away. >> they had never given climate change much thought before, but now they blamed it for uprooting their lives. >> i've lived next to the water and seen the changes. and i'm not trying to convince anyone. that's not my job. that's not what i want to do, but it's changed my mind. >> climate scientist tom wagner says one reason for sandy's devastating storm surge, the ocean around new york city has risen about a foot in the last 100 years, and he says rising seas are going to impact people living in coast tal areas in yes to come. >> there is no disagreement about sea level rising. that is measured. it's not a model, not a theory, none of those things. >> and what those measurements show us is that sea level is

expected to rise at least a foot more in the next 100 years, and possibly three or four feet, maybe even more. >> is it your sense that people will have time to get out of the way? >> that's -- it depends on who you are, where you are and what your resources are. if you're in an extremely low-lying area like bangladesh, people talk about a foot and a half sea level rise displacing 10 million people. if you're in the united states and you have resources, it could be what happens is areas right on the coast will get damaged but they will be able to move to interior areas. >> a recent study by the world bank lists cities around the world with the most to lose economically from rising sea levels. five american cities make the top ten.

miami, new york, boston and new orleans. they tried to visualize what an america under siege from the ocean might look like. here's what is imagined would happen to the jefferson memorial if the sea rose by 12 feet. here's the statue of liberty at 25 feet. lamb is not a scientist, and his projections may be overly dramatic because most scientists think a 25 foot sea level rise wouldn't happen for centuries, if ever. but these images especially of south florida do make you think. here's the illustration of ocean drive in miami, florida. at five feet, at 12 feet, at 25 feet he imagines the thriving beach mecca might be underwater. >> when you look at miami beach all the way up here it becomes pretty on slus why it might be at risk. the low lying peninsula is hemmed in by water. and there's another reason that you can't see that makes miami

beach a city of 90,000 people even more vulnerable. because it turns out miami beach was built on a porous limestone plateau which means seawater can force its way into the heart of the city through drains. it's already happening. during high tides ocean water can overwhelm the drains here, flooding roads like this one facing the bay. >> i was leer in october, last october when we had those high tides, and i actually went in the street. i had the water up to my knees. >> karen is a research scientist at the center for environmental studies. her work focuses on mapping which parts of southeast florida are most at risk from rising sea levels. according to one of her maps, that road she had been standing on would most likely be under water by the end of the century if nothing is done.

>> we don't have time to argue. it's here. it's happening, and we need to do something. and there's an urgency about it. >> and she told us her sense of urgency comes not just from thinking about the worst-case scenario in which miami beach is under water. she says just a few extra inches of seawater could have a serious impact on people's health. >> we have a lot more risk of contamination to our water supply. and disease factors, when everything's wet, we have more mosquitoes. those are some of the issues we need to be looking at. and. >> and there are billions of dollars of property at risk too. >> i can tell you with certainty, the water will be higher. it's not going to stop rising. and how much higher? that's what we don't know. but we're getting more and more accurate, and we need to eventually make drastic changes so that the water doesn't come up over the sea wall. >> but miami beach is spending a lot of money to make sure that doesn't happen.

that road where we first met karen is just one site that is currently under construction. part of a $400 million plan to keep the water out. >> they're planning to install 60 pumps in the next five years. >> she acknowledges that the pumps have a short life-span, that this short-term fix won't defend the city from how high the sea is expected to be by the turn of the century. >> that's okay because we have time. 2100. we won't be alive then but our children will be and that's what's important now. >> by now we have seen and heard so much about the devastating effect of climate change we wondered if anything can be done to stop it in its tracks. >> the question is can we slow down the train? >> what would it take? what can we do? >> it's kind of like, you know, putting a man on the moon or

♪ we've seen the devastating

impacts of extreme weather, drought and fire, storms and floods. >> it's kind of wanting to pull -- >> we've heard from scientists who told us climate change is already here. >> human beings are basically resculpting the planet. >> this is happening now. it's happening before our very eyes. >> and that was also the message of that big international climate change report. it said if we don't act none of us will be immune from the ravages of climate change. but hundreds of millions of people could be displaced by rising seas and competition over water, food and places to live could lead to conflict. the report also gave examples of how we might cope with climate change, like building new sea walls or growing crops that can survive warmer climates, and addressing the threat to our ocean food supply. evening so, we wondered is there anything we can do to stop climate change all together. can we slow down the train?

>> it's tough. in the next 100 years it's really tough to deal with the changes that are coming. on the longer time scales, though, we can have dramatic effects. >> according to tom wagner and most climate scientists, the way to most dramatically slow down the impact of climate change is to find a way to reduce our carbon dioxide emissions one way or another. >> we can have a tremendous impact, and that's something we need to work on. >> and that work has already begun. while still high, u.s. carbon dioxide emissions are lower now than they were in 2005. and power companies are beginning to experiment with cleaner energy sources like this hybrid solar/natural gas power plant in florida, one of the first of its kind of the florida power and light company estimates they could reduce their emissions by millions of tons in the next 30 years. >> the earlier and the more significantly we take action the

less the possible risks are going forward. >> climate change public policy expert robert pillki june joiors it is bigger than one individual person. >> changing my light bulb is not going to make a difference. >> changing the light bulb is not going to make that big of a difference. >> it's not premature for government-led initiative. >> we need a commitment to energy innovation similar to what we have for the national institutes of health, the department of defense and to sustain it for decades. unless that's on the table, unless we're talking about that, we're going to nibble around the edges of the problem. >> he suggests putting a small tax on fossil fuels like gasoline that consumers would end up paying. >> it would raise tens of billions of dollars. >> but he says none of this will

work ft. u.s. acts in isolation. he says china and india which pump huge amounts of co2 into the atmosphere need to be part of the solution too. and jason box agrees that a hurricane lean effort is needed. >> these are things that americans rallied around. >> are you equating with what the world is facing with climb at change to world war ii, putting a man on the moon? that kind of drama? >> it's kind of all hands on deck. we do need everyone. >> in the meantime, he has moved his young family from north america to denmark. >> i thought going forward, climate change would be less of a problem. >> the other people we met on our journey are also adapting to the changes they have hey seen. >> perhaps over here in the grass. >> pedro and jen ultimately

decided to take a government buyout and move away from their one-time dream home in staten island. >> life is not going to stop for you. you stop and mourn and you don't forget. but you have to keep going. >> tara is rationing every drop of water and lives in dread of the coming wildfire season. she is wondering just how long she is hold out. >> it's sad. i want to see my grandkids and everything grow up here. and we don't know if we have that future. >> scientist tom wagner also thinks about his children and what climate change will mean for them. >> it's hard, and i worried a lot about the decision to have kids in the world and where it's going. at the end of the day, though, i am hopeful. i think some of these things we're talking about are things we can deal with. >> and one of the things that makes wagner so hopeful is his faith in the next generation. >> i think if you're a young person today, one of the things to think about is hey, what kind of career are you going to go

into? working on alternative sources of energy, being a climate scientist, or even being a policy person to work out better ways society can use its resources and pro actively deal with these changes. >> up in the arctic there are ghost settlements now, relics from a fading way of life as inuit families abandon the ice that is milting all around them. it is a fate that the leader hopes we can avoid. >> look out of the window and see how beautiful the nature is. look at it. and hear it. >> and protect it. >> protect it. take good care of it. >> it may seem like a distant concern when we're caught up in the business of our every day lives, but many of the world's best scientific minds say climate change is real, here, and put us on notice.

they are asking how will we respond. ♪ exclusive interview with the prime minister of ukraine who warn that is putin is far from finished. >> president putin has a dream to restore the soviet union. >> should america send weapons to ukraine's outgunned military? i'll ask two key members of the senate foreign relations committee this morning. also, the high stakes politics in this midterm election year. health care and social issues. the author of a new book about the fight over gay marriage joins me to talk about whether the religious right has lost some of its potency. we'll also hear from the chair of the democratic party, debbie wasserman schultz, on whether this week's good news on health care can turn the tide for democrats this fall.